28010087520 has 96 divisors (see below), whose sum is σ = 89041407840. Its totient is φ = 7400816640.

The previous prime is 28010087509. The next prime is 28010087531. The reversal of 28010087520 is 2578001082.

It is an interprime number because it is at equal distance from previous prime (28010087509) and next prime (28010087531).

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 215361 + ... + 320000.

It is an arithmetic number, because the mean of its divisors is an integer number (927514665).

Almost surely, 2^28010087520 is an apocalyptic number.

28010087520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28010087520 is an abundant number, since it is smaller than the sum of its proper divisors (61031320320).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28010087520 is a wasteful number, since it uses less digits than its factorization.

28010087520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 535488 (or 535480 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 33.

The spelling of 28010087520 in words is "twenty-eight billion, ten million, eighty-seven thousand, five hundred twenty".